Complete GATE CH 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 61–63 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 21 of 22

Question 61

Open question
CHNAT2 marksNeeds review
The flooding velocity curves for two different structured packings are shown in the figure. The ratio of mass velocities of liquid (

) to that of the gas (

) is 1.27. The density of the liquid (

) is 1200 kg m⁻³ and that of the gas (

) is 1.2 kg m⁻³. For both the packings, the allowable superficial vapor velocity is 60% of flooding velocity (

). The ratio of allowable mass velocity of the vapor in packing P to that in packing Q is __________ (rounded off to one decimal place).
Diagram for Chemical Engineering question 61


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Question 62

Open question
CHNAT2 marksNeeds review
Consider a differential equation:


The value of y at x = 2 is ______ (rounded off to two decimal places).

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Question 63

Open question
CHNAT2 marksNeeds review
The data given in the table are fitted to the equation

using the method of least squares. The value of m is _____ (rounded off to one decimal place).

1
2
3
4

2
6
7
10

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